Comment by anyfoo

No, I get you. I'm stating that Winamp might have been "special" because it had a software equalizer, and its volume control might have actually changed the preamp level. This would be fairly unusual for other app of its time, and I also wondered what would happen if you turned the Preamp off with its big shiny button, and whether that would let the volume control control the global volume instead, or whether it maybe would disable the volume control entirely.

What I'm saying is: I still feel (perhaps wrongly, quite possibly so) that in 1997, changing the global volume was more common, and that even being able to change app-specific volumes required some non-trivial features from the app who can do so.